Trojan.PS1.DEADLOCK.YXFGV
Windows
Threat Type: Trojan
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
Downloaded from the Internet, Dropped by other malware
This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
TECHNICAL DETAILS
5,870 bytes
PS1
No
22 Jul 2025
Disables services, Deletes files
Arrival Details
This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Installation
This Trojan adds the following processes:
- powershell.exe -Verb RunAs -ArgumentList ('exec bypass -file "{malware fullpath}" -elevated' -f (%myinvocation.MyCommand.Definition))
Other Details
This Trojan does the following:
- It deletes itself after its malicious routine.
- It checks if it has administrator privileges.
- It removes the shadow copy of the system by deleting the following WMI object:
- Win32_ShadowCopy
- It disables all the running services in the system except the following:
- UdkUserSvc*
- DevicesFlowUserSvc*
- AarSvc*
- WpnUserService*
- CDPUserSvc*
- cbdhsvc*
- UserDataSvc*
- PimIndexMaintenanceSvc*
- UnistoreSvc*
- vmicguestinterface
- vmicheartbeat
- vmickvpexchange
- vmicrdv
- vmicshutdown
- vmictimesync
- vmicvss
- LicenseService
- MSSEARCH
- smphost
- SrmReports
- SrmSvc
- ddpvssvc
- msiserver
- KtmRm
- DeviceInstall
- Onesyncsvc*
- WsusService
- NgcSvc
- ClipSVC
- ALG
- FileSyncHelper
- LxpSvc
- dmwappushservice
- PeerDistSvc
- Eaphost
- WlanSvc
- WwanSvc
- dot3svc
- server
- workstation
- WinDefend
- WSRM
- WINS
- silsvc
- WaaSMedicSvc
- NgcCtnrSvc
- RmSvc
- Adws
- adfssrv
- Aelookupsvc
- Anydesk
- Apphostsvc
- Appinfo
- Appmgmt
- Appxsvc
- Bfe
- Bits
- Brokerinfrastructure
- Browser
- Bthavctpsvc
- camsvc
- Cdpsvc
- Certpropsvc
- CscService
- Certsvc
- SmbWitness
- Clussvc
- Comsysapp
- Coremessagingregistrar
- Cryptsvc
- MMCSS
- Dbxsvc
- dbupdate
- dbupdatem
- Dcomlaunch
- Deviceassociationservice
- Dfs
- NfsClnt
- NfsService
- Dfsr
- Dhcp
- Dhcpserver
- Diagtrack
- TabletInputService
- DispBrokerDesktopSvc
- Dns
- Dnscache
- Dnsproxy
- Dosvc
- Dps
- Dsmsvc
- DusmSvc
- Dssvc
- Efs
- Eventlog
- NtLmSsp
- Eventsystem
- Fdphost
- Fdrespub
- Fontcache*
- Gpsvc
- Hidserv
- Hvhost
- Ias
- Ikeext
- Iphlpsvc
- Ismserv
- Kdc
- Kdssvc
- Keyiso
- Kpssvc
- Lanmanserver
- Lanmanworkstation
- Lfsvc
- Licensemanager
- Lmhosts
- Lsm
- LSM
- Mpssvc
- Msdtc
- WinTarget
- Msiscsi
- Msmq
- Ncbservice
- Netlogon
- Netman
- Netprofm
- Netsetupsvc
- WZCSVC
- Nlasvc
- Nla
- SharedAccess
- Nsi
- Ntds
- Ntfrs
- UPlugPlay
- Plugplay
- Policyagent
- Power
- Profsvc
- Psexesvc
- Ramgmtsvc
- Rasauto
- Rasman
- Remoteaccess
- Remoteregistry
- Rpceptmapper
- Rpchttplbs
- Rpcss
- Samss
- Scdeviceenum
- Schedule
- Seclogon
- Securityhealthservice
- Sens
- Sessionenv
- Shellhwdetection
- Ssdpsrv
- Sstpsvc
- Staterepository
- SgrmBroker
- Stisvc
- Storsvc
- Swprv
- Sysmain
- ProtectedStorage
- Systemeventsbroker
- RDMS
- rpcapd
- Tapisrv
- Termservice
- Tssdis
- TScPubRPC
- TermServLicensing
- Themes
- Tiledatamodelsvc
- Timebroker
- Timebrokersvc
- Tokenbroker
- Trkwks
- Trustedinstaller
- Tsgateway
- Ualsvc
- uhssvc
- Umrdpservice
- Upnphost
- Usermanager
- Uxsms
- OneDrive Updater Service
- lltdsvc
- Vaultsvc
- Vds
- vmicvmsession
- Vmcompute
- Vmms
- nvspwmi
- vhdsvc
- Vss
- W32time
- Was
- Wcmsvc
- wcncsvc
- wscsvc
- Wdiservicehost
- Webclient
- Winhttpautoproxysvc
- Winmgmt
- Winrm
- Wlidsvc
- Wmiapsrv
- Wpdbusenum
- Wpnservice
- Wsearch
- dmserver
- Wuauserv
- It deletes all network shares except the following:
- SYSVOL
- NETLOGON
- It deletes the following shared folders:
- prnproc
SOLUTION
9.800
20.344.05
22 Jul 2025
20.345.00
23 Jul 2025
Step 1
Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.
Step 2
Scan your computer with your Trend Micro product to delete files detected as Trojan.PS1.DEADLOCK.YXFGV. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check the following Trend Micro Support pages for more information:
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